Check-In and Out was quite easy. You have to pay 1000 Baht deposit for the key, but you get it back at check out.
The apartment looked different from the photos. The owner told me that they have several apartments and could not take photos of every one. I wasn't very happy with my first one. But "K" offered me to switch to another one.
The location is great (close to BTS and 7/11) and the apartment has everything you need. Communication was fast and friendly.